Power device.



O. HOFSTRAND.

POWER DEVICE. APPLICATION HLED APR. l5. I914.

Patented Dec. 1451915.

2 SHEETS-SHEET L 0. HUI-STRAND Wiimmwo O. HOFSTRAND.

POWER DEVICE.

APPLICATION FILED APR-15, I914.

P11111161 Dec.14 ,1915.

2 SHEETS-SHEET 2.

0. HOFGTRA ND Gum,

COLUMBIA PLANosRAm-l c0.. WASHINGTON, n. c.

osKAR norsrnnivnor BROOKLYN, NEW YORK.

rowna DEVICE.

Specification of Letters Patent.

Patented Dec. 14:, 1915.

Application filed. April 15, 1914. Serial No. 832,016.

To all whom it may concern."

.Be it known that I, OsnAR HorsTRAND, a

citizen of the UnitedStates, residingat Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements'in Power Devices, of which the following is a specification,

reference being bad to the accompanying drawings. j v This invention relates to new and useful improvements in motors and more particularly to a motor whichv attainsits power from the rocking of a marine vessel, the main object of the invention being the provision of, amotor of this character which is mounted within the hull of avessel and is adapted to provide power for any suitable V purpose for use upon a ship or vessel. 7

Anotherobject of the present invention is the provision of a power device of the above character-whichwill possess advantages in points of efficiency and durability,

is inexpensive to manufacture and, at. the

same time, is simple in construction and With the above and other-objects in view,

, the invention consists in the novel features specification and claims.-

of construction,: combination and arrangement of parts-as will be hereinafter referred to and more particularly pointed out in the In the accompanying drawing forming. a part of this application, Figure 1 is a side elevation of a power device constructed in accordance with my inventlon.

Fig. 2 is a transverse sectional view taken on the line .2,2,'Fig. 1. ;Fig. 3 is aside elevation of a-slightly modified form of the invention;

andFig. 4: isa side elevation of the pawl and ratchet.

Incarrying ,ou-t my inventioinl provide :what is known as a balance wheel 'WlllCll in r the accompanying drawing is generally indicated by the numeral 1. This wheelis 'rotatably mounted within a frame 2 which fspreferably rectangular in form and is provided at a central portion with a transverse shaft '3, uponwhi'ch the wheel is mounted.

Arranged upon one side of the frame and secured tolthe shaft is amotor 4, whereby to convey power to the shaftand rotate the wheel 1.: The frame 2,is provided at each to impart a .crank 14:.

hull of the ship by means of the bolts 8. The spindles 5 are removably arranged with in the bearing 6 and securely held in position by means of the plates 9 which are bolted or otherwise secured to the upper ends of the standards in order to retain the spindles in their effective positions.

, Onev of the spindles at one end of the frame projects beyond the standards 7 and mounted thereon is a gear 10 which is adapted to mesh with a similar gear 11 formed upon the inner end of a shaft 12, said shaft being rotatablv'mounted within upright bearings 13 and provided with a crank 14: which is arranged between said bearings.

The crank 14 may be connected with any suitable operating mechanism whereby upon the rocking movement- 0f the ship, the reciprocation ofthe crank will actuate the device to which said crank may be applied. a From the above description taken in connection with the accompanying drawing, it will be readily apparent that the operation of my device is as follows :-After the device has been placed-in position within the hull of a ship, the motor 4 is started and rotates the; wheel '1 at a high rate of speed,

so as to impart a substantially; gyroscopic aotlon to the wheel and reta n the same in a vertical-position at alltimes. Therefore, should the ship be rocking back and forth,

the wheel 1 and the gear 10 will be retained in a substantially vertical position, while -the-standards 13 and 7 will move with the rocking of the ship so that the gear 11 will be moved back and forth over the gear 10 rocking movement to the In Fig. 3 I have} illustrated a slightly modified form of the invention which can be readily used" in place of the preferred form of device and which will utilize the power obtained from the rocking of the vessel to drive the balance wheel 1. In this form of the invention, a gear-15 is arranged at the end of the frame 2, opposite the gear 10v and is provided with inwardly projecting perforated cars 16 adapted tobe rigidly secured to the standards 7 by means of the bolts'17. Projecting outwardly from the frame 2, is a standard 18fin which is mounted, a shaft19 having the gear 20 upon a its outer-end, said gear beingprovided with a pivoted-pawl 21 adapted to engage with the ratchet 22 mounted upon the shaft 19 to prevent rotation of said shaft in onedirection. Mounted upon the inner end of the shaft 19 is a pinion 23 meshing directly with adapted to engage a similar wheel 33 formed upon one end of the shaft 3, whereby upon rotary movement of the shaft 19, the wheel l'will be rotated. The wheel 32 is slldably fmounted uponthe shaft'31 and is retained in engagement with the wheel 33 by means of a spring member 3a which is mounted upon the shaft and arranged between a stop collar 35 and one face of the wheel.

Mounted upon the shaft 31 and engaging the opposite side of the wheel 32, is a sleeve 36 to which are secured the governors 37,

whereby when the shaft 31 obtains a certain rate of speed, the governors 37 will recipro- 'cate the sleeve 36 upon the shaft and disengage the frictional connection with the wheels 32 and 33. V

Mounted upon the outer end of oneof the spindles 5 is a suspended hook 38 upon the lower end 'o'f which is mounted aweight 39 whereby to retainthe balance wheel 1 and the frame 2 in an upright position upon the rocking movement of the vessel; 7 Relative to the operation of'the modified form of the invention, it is to be first explained that the motor 4 is employed only in starting the balance wheel 1 and that after this member has been started, it is driven by the rocking of the ship itself. Since the pinion 15 is fixed with respect to the standard 7, it is obvious that when the ship rocks,

the pinion 20 will be rotated. The rotation of this pinion 20 afl'ectsthe shaft 19, however, only when the ship is rolling in one direction, for on the return movement of the ship the pawl 21 will slide over the ratchet 22. 7 Thus, during each complete oscilla} tion of the ship, one impulse is communicated to the balance wheel 1, through'the pinion 15, the pinion 20, pawl and ratchet 21 and and those members which connect may be resorted to forsuccessfully carrying my invention lntopractice,without sacrlficing any of the novel features or departing from the scope of the appended claims.

Having thus described this invention, what I claim is v i 1. A device of the class described including. upright standards, a frame rota-tably mounted between said standards, a balance wheel rotatably mounted within the frame, means for normally retaining said wheel in an upright position, a gear supported at one end uponv said frame, a rotatable crank shaft, and means connecting said gear with the crank shaft to impart movement to the latter, as and forthe purpose set forth.

2. A device of the class described includ ing upright standards, a frame arranged betweensaid standards and having spindles rotatably mounted within said standards, a

balance wheel rotatably mounted within said frame, means for normally retaining said wheel m an upright positlon, one of said spindles projecting beyond the standard, a

standards, a shaft rotatablymounted therein having a crank 'forrned bet ween the stand adapted to mesh with the first aids, and a'gear upon the'inner end thereof 3. A device of the class described includ ing upright standards, a frame rotatably mounted between said standards,'-a balance wheel "mounted for rotation within. the

frame,'one of the bearing spindles'of said;

frame projecting beyond'the standards, a

gear wheel mounted thereon, a secondgear wheel, means whereby to rotate the balance wheel and impart a gyroscopic action tothe same, wherebyupon lateral movementof the wheel "adapted to engage with the first gear standards, the'frame and balance Wheel will be retained-in an upright position and the gear wheel simultaneously. rota-ted, as and for the purpose set forth; 7 y 1 at. A device of the class describedincludframe, means for retainingsaid wheel in anupright position, further means for imparting a rotary movement to said'wheel, a gear supported at one end of said frame, a; ro-

tatable' crank shaft, and means connecting said gear with the crank shaft to impart movement to the latter,as"and for the purpose set forth. V

5. Adevice of the class described includ ing upright standards, a frame arrangedbetween said standards and having spindles rota-tably mounted within said standards, a

balance wheel mounted for rotation within the frame, means for normally retaining; .125 j said'wheel in an upright position, means for imparting rotary movement to said wheel, one of saidspindles projecting be: yond the standards, a gear wheel mounted thereon,.asecond set of standards, a shaft 85 gear wheel mounted thereon, a'second set of formed between the standards, and a gear upon the inner end thereof adapted to mesh with the first gear, as and for the purpose set forth.

6. A device of the characterdescribed including relatively fixed standards, a frame rotatably supported by the standards, a balance Wheel mounted for rotation in the frame, means connected to the frame for 10 normally maintaining the Wheel in a fixed plane, a driven shaft, and means connecting the frame and driven shaft, said drlven shaft being mounted in bearings fixed with respect to the standards, whereby the movement of the standardswith respect to the balance Wheel causes the driven shaft to be actuated through the medium of the frame.

In testimony whereof I hereunto aihx my signature in the presence of tWo Witnesses.

OSKAR HOFSTRAND.

Witnesses JOEL F. HAGsTRoN, JAMES W. REDMUND.

Gopies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents,

7 7 Washington, D. G. 

